Popsa - Senior iOS Engineer

• Experience with custom drawing, Core Graphics, or advanced UI animations • Performance optimisation and profiling with Instruments • Accessibility best practices and VoiceOver support • Experience integrating on-device ML models (CoreML, Vision) • Background in 3D graphics or AR experiences • Familiarity with localisation workflows for international apps • Architecture & data • Swift Package Manager for modular dependency management • Protocol Buffers for efficient data serialisation with our backend • Core Data for on-device persistence • Repository pattern for clean data access abstractions • Concurrency & reactive programming • Swift Structured Concurrency (async/await, actors) • Combine for reactive data flows and UI bindingsGraphics & visualisation • SceneKit and ARKit for immersive 3D product previews • Custom Metal shaders for advanced rendering effects • Vision and CoreML for on-device photo analysis and face recognition • Photo library integration • Deep PhotoKit integration for accessing and analysing user photo libraries • On-device ML models for face embeddings and photo quality scoring • Smart album generation and photo metadata synchronisation • Third-party integrations • Firebase (Analytics, Remote Config) • Sentry for crash reporting and performance monitoring • Stripe and Braintree for payment processing • GrowthBook for feature flags and experimentation • Nuke for high-performance image loading and caching • CI/CD & quality • GitHub Actions for automated linting, testing, and snapshot testing • Xcode Cloud for continuous integration • Fastlane for release automation • SwiftLint for code style consistency • Snapshot testing for UI regression prevention • To learn more about this role or the company, contact us through https://popsa.com/careers. • If you’re the sort of person who cares about the detail, and stays kind under pressure, you’ll fit in. • We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.